diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index ee7e5cbf5febb..5df4394ca5d93 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -3748,6 +3748,13 @@ libc_math_function(
     ],
 )
 
+libc_math_function(
+    name = "fmodbf16",
+    additional_deps = [
+        ":__support_fputil_generic_fmod",
+    ],
+)
+
 libc_math_function(
     name = "fmodf",
     additional_deps = [
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
index 087c3a62472e6..07d95fb18e883 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel
@@ -738,6 +738,11 @@ math_test(
     hdrs = ["FModTest.h"],
 )
 
+math_test(
+    name = "fmodbf16",
+    hdrs = ["FModTest.h"],
+)
+
 math_test(
     name = "fmodf",
     hdrs = ["FModTest.h"],